Philippa Kaur

The model Predator-prey interactions have been investigated systenmatically by following the work of Lotka20. In this section, we first introduce the Lotka-Volterra model and single-species model with toxicity factors. We then combine these two models to obtain a new modified model. The Lotka-Volterra predator-prey model is depicted by16: $$begin{array}{c}frac{d{x}_{1}}{dt}={x}_{1}({r}_{10}-{r}_{11}{C}_{1}-{a}_{1}{x}_{2}) frac{d{x}_{2}}{dt}={x}_{2}(-{r}_{20}-{r}_{21}{C}_{2}+{a}_{2}{x}_{1})end{array}$$ In those two differential equations, […] More

Study sites Entomological monitoring was conducted in 12 villages in Migori (−1.0667S; 34.4667E) and Homa Bay (−0.5396S; 34.4565E) counties from July 2016 to February 2018. Six IRS intervention sub-counties were in Migori County, and six control sub-counties were in neighbouring Homa Bay County (n = 4) and unsprayed areas of Migori County (n = 2) (Fig. 1). The residents in […] More

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NATURE PODCAST 11 March 2020 Hear the latest science news, brought to you by Shamini Bundell and Nick Howe. This week, a newly discovered bird species from the time of the dinosaurs, and microbes hundreds of metres below the ocean floor. Download MP3 In this episode: 00:44 A tiny, toothy, ancient bird Researchers have found […] More

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1. Shah Walter, S. R. et al. Microbial decomposition of marine dissolved organic matter in cool oceanic crust. Nat. Geosci. 11, 334–339 (2018). 2. D’Hondt, S., Rutherford, S. & Spivack, A. J. Metabolic activity of subsurface life in deep-sea sediments. Science 295, 2067–2070 (2002). 3. Jørgensen, B. B. Deep subseafloor microbial cells on physiological standby. […] More

EDITORIAL 11 March 2020 Locusts are causing a food crisis that can no longer be ignored. A military helicopter tracks locust swarms in Uganda. The country is behind in its payments to the Desert Locust Control Organization for East Africa.Credit: Sumy Sadurni/AFP/Getty While all eyes are on the coronavirus outbreak, an under-reported emergency is threatening […] More